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https://issues.apache.org/jira/browse/HIVE-4073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13586599#comment-13586599
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Ashutosh Chauhan commented on HIVE-4073:
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sql spec allows empty specification in over clause. Currently, our parser fails
to parse this query. We have order-by optional but we don't need user to
specify a partitioning spec. Infact we should relax that requirement and if
user chose not to specify the partitioning column than partition by some
constant value which achieves desired effect.
> Make partition by optional in over clause
> -----------------------------------------
>
> Key: HIVE-4073
> URL: https://issues.apache.org/jira/browse/HIVE-4073
> Project: Hive
> Issue Type: Bug
> Components: PTF-Windowing
> Reporter: Ashutosh Chauhan
>
> select s, sum( i ) over() from tt; should work.
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